Riley Reads & Spells

Lesson A1 — Guard the Vowel (CVC Doubling)
Stage: Intro
Mastery: 0%
Course: Module A — Word Study
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TEACHING
Today’s Focus: Guard a short vowel when you add a vowel suffix.
CVC Doubling Rule: If a base word ends with C‑V‑C, double the final consonant before adding a vowel suffix (-ing, -ed, -er, -est, -y). Doubling keeps the vowel short (hopping vs. hoping).
Examples
  • run → running
  • sit → sitter
  • stop → stopped
  • big → biggest
When NOT to double
  • Suffix starts with a consonant: sad + ness
  • Two vowels: read + ing
  • Ends with two consonants: jump + ing
  • Ends in w/x/y: snow + ing
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PRACTICE
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window.RileyFX = { correct: ()=>{ flashAvatar('celebrate', 1400); triggerFireworks(1400); }, wrong: ()=>{ flashAvatar('sad', 1100); } };